Ammonium alginate

Ammonium alginate is notable for FODMAPs and nickel. Clear on lactose, histamine, gluten, fructose, oligosaccharides, sorbitol, sucrose, tyramine, salicylate and oxalates.

Ammonium alginate contains only low levels of FODMAPs. Ammonium alginate comes from brown seaweed and ferments in the colon - but slowly and evenly, without the fast osmotic pull that makes a FODMAP a FODMAP. Low rather than none, because it does feed the bacteria; low rather than high, because it does it gently and is used in fractions of a percent.

Ammonium alginate contains only low levels of nickel. Ammonium alginate is a seaweed extract neutralised with ammonia. The seaweed origin is the only route to nickel here, and purification has already removed most of what the plant held. Seaweed is the reason this axis is asked about at all here: it concentrates trace elements from seawater, and the review behind this level is about exactly that load in seaweed and in the ingredients made from it. Amounts vary by brand and recipe, so always check the label of the exact product.